/* =========================================================
   ysamut.fr — feuille de style commune
   ========================================================= */

/* ---------- Polices Computer Modern (licence OFL) ---------- */
@font-face { font-family: "Computer Modern Bright"; src: url("fonts/cmunbmr.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Computer Modern Bright"; src: url("fonts/cmunbmo.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Computer Modern Bright"; src: url("fonts/cmunbbx.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Computer Modern Bright"; src: url("fonts/cmunbxo.woff2") format("woff2"); font-weight: 700; font-style: italic; font-display: swap; }
@font-face { font-family: "Computer Modern Typewriter"; src: url("fonts/cmuntt.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }

/* ---------- Couleurs ---------- */
:root {
  --bg: #F7F7F5;
  --surface: #FFFFFF;
  --text: #2A2A28;
  --strong: #1A1A18;
  --muted: #6E6D68;
  --border: #E5E4E0;
  --accent: #1A1A18;
  --accent-fg: #FFFFFF;
  --hover: #F0EFEC;
  --shadow: 0 1px 2px rgba(20,20,20,.05), 0 8px 24px rgba(20,20,20,.04);
  --radius: 12px;
  --maxw: 52rem;
  --font-text: "Computer Modern Bright", "CMU Bright", "Helvetica Neue", Arial, sans-serif;
  --font-serif: var(--font-text);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #141413;
  --surface: #1C1C1B;
  --text: #E6E5E1;
  --strong: #F5F4F0;
  --muted: #A09F99;
  --border: #2D2C2A;
  --accent: #EDECE8;
  --accent-fg: #141413;
  --hover: #252523;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.3);
  color-scheme: dark;
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--font-text); font-size: 17px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh; display: flex; flex-direction: column;
}
main { flex: 1; }
h1, h2 { font-family: var(--font-text); font-weight: 700; color: var(--strong); line-height: 1.25; }
h1 { font-size: 1.9rem; font-weight: 400; letter-spacing: .01em; margin: 0 0 .5rem; }
h2 { font-size: 1.3rem; margin: 2.25rem 0 .9rem; }
p { margin: 0 0 1rem; }
a { color: var(--strong); text-underline-offset: 3px; text-decoration-color: color-mix(in srgb, currentColor 40%, transparent); }
a:hover { text-decoration-color: currentColor; }
strong { color: var(--strong); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } html { scroll-behavior: auto; } }

/* ---------- Barre du haut ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  width: 100%; max-width: var(--maxw); margin: 0 auto;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(20,20,20,.06), 0 6px 18px rgba(20,20,20,.06);
}
:root[data-theme="dark"] .topbar { box-shadow: 0 1px 2px rgba(0,0,0,.4), 0 6px 18px rgba(0,0,0,.35); }
.topbar-inner {
  padding: .7rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.brand { flex: 1; }
.top-actions { display: flex; align-items: center; gap: .5rem; }

.nav {
  display: flex; align-items: center; gap: .1rem;
  background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: .22rem;
}
.nav > a, .nav-group > button {
  font: inherit; font-size: .93rem; color: var(--muted); background: none; border: 0; cursor: pointer;
  padding: .36rem .85rem; border-radius: 999px; text-decoration: none; white-space: nowrap;
  display: inline-flex; align-items: center; gap: .35rem;
}
.nav > a:hover, .nav-group > button:hover { color: var(--strong); background: var(--hover); }
.nav > a.active, .nav-group.active > button { background: var(--accent); color: var(--accent-fg); }
.nav-group { position: relative; }
.nav-group > button svg { width: .7rem; height: .7rem; transition: transform .15s; }
.nav-group.open > button svg { transform: rotate(180deg); }
.nav-menu {
  position: absolute; top: calc(100% + .45rem); left: 50%; transform: translateX(-50%);
  min-width: 15rem; padding: .35rem; display: none;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
}
.nav-group.open .nav-menu { display: block; }
.nav-menu a { display: block; padding: .5rem .75rem; border-radius: 8px; color: var(--text); text-decoration: none; font-size: .93rem; }
.nav-menu a:hover { background: var(--hover); }
.nav-menu a.active { color: var(--strong); font-weight: 700; background: var(--hover); }

.icon-btn {
  width: 2.1rem; height: 2.1rem; flex: 0 0 auto; padding: 0; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); background: var(--surface); color: var(--strong); border-radius: 8px;
}
.icon-btn:hover { border-color: var(--muted); }
.icon-btn svg { width: 1.05rem; height: 1.05rem; }
.nav-toggle { display: none; }

@media (max-width: 44rem) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: absolute; top: calc(100% + .3rem); left: .75rem; right: .75rem;
    flex-direction: column; align-items: stretch; gap: 0; display: none;
    border-radius: var(--radius); padding: .4rem; box-shadow: var(--shadow);
    max-height: calc(100vh - 5rem); overflow-y: auto;
  }
  .topbar.nav-open .nav { display: flex; }
  .nav > a, .nav-group > button { border-radius: 8px; padding: .6rem .75rem; justify-content: space-between; width: 100%; }
  .nav-menu { position: static; transform: none; box-shadow: none; border: 0; padding: 0 0 .3rem .5rem; min-width: 0; }
  .nav > a.active, .nav-group.active > button { background: var(--hover); color: var(--strong); font-weight: 700; }
}

/* ---------- Contenu ---------- */
.content { max-width: var(--maxw); width: 100%; margin: 0 auto; padding: 2.25rem 1.25rem 4rem; }
.eyebrow { margin: 0 0 .35rem; font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .09em; color: var(--muted); }
.lede { color: var(--muted); font-size: 1.08rem; margin: 0 0 1.5rem; }
.intro { margin: 0 0 1.75rem; }
.intro p { color: var(--text); }

/* ---------- Listes de documents ---------- */
.list {
  list-style: none; margin: 0; padding: 0;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
}
.row {
  display: flex; align-items: center; justify-content: space-between; gap: .6rem 1.5rem;
  padding: 1rem 1.25rem; border-top: 1px solid var(--border);
}
.row:first-child { border-top: 0; }
.row[hidden] { display: none; }
.row-main { flex: 1 1 auto; min-width: 0; }
.row-kicker { display: block; font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-bottom: .1rem; }
.row-title { display: block; color: var(--strong); font-weight: 700; }
.row-title a { color: inherit; text-decoration: none; }
.row-title a:hover { text-decoration: underline; }
.row-desc { color: var(--muted); font-size: .92rem; margin: .2rem 0 0; }
.row-note { color: var(--muted); font-size: .85rem; margin: .2rem 0 0; }
.row-links { flex: 0 0 auto; display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .45rem; max-width: 60%; }
@media (max-width: 40rem) {
  .row { flex-direction: column; align-items: stretch; }
  .row-links { justify-content: flex-start; max-width: none; }
}

/* Énoncé + corrigé collés */
.doc-pair { display: inline-flex; }
.doc-pair .doc:first-child { border-top-right-radius: 0; border-bottom-right-radius: 0; }
.doc-pair .doc.corr { border-top-left-radius: 0; border-bottom-left-radius: 0; margin-left: -1px; color: var(--muted); }
.doc-pair .doc.corr:hover { color: var(--accent-fg); }

.doc {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .3rem .8rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface);
  color: var(--strong); text-decoration: none; font-size: .9rem; line-height: 1.4;
  transition: background .12s, border-color .12s, color .12s;
}
.doc:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); text-decoration: none; }
.doc.disabled { color: var(--muted); border-style: dashed; pointer-events: none; }

/* Onglets */
.tabs {
  display: inline-flex; flex-wrap: wrap; gap: .15rem; margin: .5rem 0 1.25rem;
  background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: .22rem;
}
.tabs button { font: inherit; font-size: .93rem; border: 0; background: none; color: var(--muted); padding: .4rem 1rem; border-radius: 999px; cursor: pointer; }
.tabs button:hover { color: var(--strong); background: var(--hover); }
.tabs button[aria-selected="true"] { background: var(--accent); color: var(--accent-fg); }
.tab-panel[hidden] { display: none; }
@media (max-width: 30rem) {
  .tabs { display: flex; border-radius: var(--radius); }
  .tabs button { flex: 1 1 auto; border-radius: 8px; }
}

/* Encadré (page « Soit ou soient ») */
.callout { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; margin: 1.5rem 0; }
.callout-title { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .09em; color: var(--muted); margin: 0 0 .5rem; }
.callout p:last-child { margin: 0; }
.reference { margin-top: 2.5rem; padding-top: .9rem; border-top: 1px solid var(--border); color: var(--muted); font-size: .88rem; }

/* Liens utiles */
.link-url { display: block; color: var(--muted); font-size: .85rem; font-family: "Computer Modern Typewriter", ui-monospace, monospace; word-break: break-all; }

/* ---------- Accueil ---------- */
.profile { display: flex; gap: 1.5rem; align-items: flex-start; flex-wrap: wrap; margin-top: 1rem; }
.profile img { width: 96px; height: 96px; object-fit: cover; border-radius: 50%; flex: 0 0 auto; border: 1px solid var(--border); }
.profile-body { flex: 1; min-width: 14rem; }
.profile-name { font-family: var(--font-text); font-weight: 400; font-size: 1.5rem; color: var(--strong); margin: 0 0 .15rem; }
.profile-role { color: var(--muted); margin: 0 0 1rem; line-height: 1.5; }
.social { display: flex; gap: .5rem; }
.social a {
  width: 2.2rem; height: 2.2rem; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--muted);
}
.social a:hover { color: var(--strong); border-color: var(--muted); }
.social svg { width: 1rem; height: 1rem; }

/* ---------- Pied de page ---------- */
.site-footer { text-align: center; color: var(--muted); font-size: .8rem; padding: 1.25rem 1rem 1.5rem; }

/* ---------- Liseuse PDF (fenêtre sur la page, comme l'ancien site) ---------- */
#pdfModalOverlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 9999; }
:root[data-theme="dark"] #pdfModalOverlay { background: rgba(0,0,0,.7); }
#pdfModalOverlay.open { display: block; }
#pdfModalBox {
  position: absolute; top: 24px; left: 24px; right: 24px; bottom: 24px; max-width: 70rem; margin: 0 auto;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 10px 40px rgba(0,0,0,.3); display: flex; flex-direction: column;
}
#pdfModalHeader {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  padding: .55rem .75rem .55rem 1.1rem; background: var(--surface); border-bottom: 1px solid var(--border); flex-shrink: 0;
}
#pdfModalOpenNewTab {
  display: inline-flex; align-items: center; gap: 6px; font-size: .9rem;
  color: var(--muted); text-decoration: none; white-space: nowrap;
}
#pdfModalOpenNewTab:hover { color: var(--strong); }
#pdfModalOpenNewTab svg, #pdfModalClose svg { width: 14px; height: 14px; }
#pdfModalClose {
  font: inherit; font-size: .9rem; cursor: pointer; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-fg);
  border-radius: 8px; padding: .35rem 1rem; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
}
#pdfModalClose:hover { opacity: .85; }
#pdfModalFrame { flex: 1; width: 100%; border: none; background: var(--bg); }
@media (max-width: 992px) {
  #pdfModalBox { top: 0; left: 0; right: 0; bottom: 0; border: 0; border-radius: 0; height: 100dvh; }
  #pdfModalHeader { position: sticky; top: 0; z-index: 2; padding: .7rem 1rem; padding-top: calc(.7rem + env(safe-area-inset-top)); }
  #pdfModalOpenNewTab .label-full { display: none; }
  #pdfModalClose { padding: .5rem 1.1rem; font-size: 1rem; }
}

/* ---------- Pages protégées ---------- */
.gate {
  max-width: 24rem; margin: 2.5rem auto; text-align: center;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1.75rem 1.5rem;
}
.gate svg { width: 1.6rem; height: 1.6rem; color: var(--muted); }
.gate h3 { font-size: 1.05rem; margin: .5rem 0 1rem; color: var(--strong); }
.gate form { display: flex; gap: .5rem; }
.gate input { flex: 1; min-width: 0; font: inherit; padding: .5rem .75rem; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); }
.gate input:focus { outline: none; border-color: var(--muted); }
.gate button { font: inherit; padding: .5rem 1rem; border-radius: 8px; cursor: pointer; border: 0; background: var(--accent); color: var(--accent-fg); }
.gate-error { color: #B3261E; font-size: .9rem; margin: .75rem 0 0; display: none; }
:root[data-theme="dark"] .gate-error { color: #F2B8B5; }
.protected[hidden] { display: none; }

@media (max-width: 30rem) {
  body { font-size: 16px; }
  .content { padding: 1.25rem 1rem 3rem; }
  .topbar-inner { padding-left: 1rem; padding-right: 1rem; }
  h1 { font-size: 1.6rem; }
  .row { padding: .9rem 1rem; }
}